Possible Causes
- Circuit integrity to C0331/36 (YB). See step 1
under CHECK.
- Circuit integrity to C0331/37 (YN). See step 2
under CHECK.
- Connector C0331. See step 3
under CHECK.
- Transfer box control module. See step 4
under CHECK.
- V8 Engine Management System ECM. See step 5
under CHECK.